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Brain Res. 2012 Nov 5;1483:112-7. doi: 10.1016/j.brainres.2012.09.022. Epub 2012 Sep 19.

Resveratrol upregulated heat shock proteins and extended the survival of G93A-SOD1 mice.

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1
Department of Molecular Biology, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul 143-747, Korea.

Abstract

In the present study, we investigated whether resveratrol, a SIRT1 activator, can suppress the motor neuron degeneration in a transgenic mouse model of amyotrophic lateral sclerosis. Chronic intraperitoneal injection of resveratrol delayed the disease onset and extended survival of the transgenic mice overexpressing G93A-SOD1. The number of surviving motor neurons increased in the resveratrol-injected G93A mice. Importantly, the levels of Hsp25 and Hsp70 were elevated while the level of heat shock factor 1 (HSF1) acetylation decreased in the spinal cords of the resveratrol-injected G93A mice. Our data suggest that resveratrol may protect motor neurons from the mutant SOD1-induced neurotoxicity by promoting SIRT1-mediated deacetylation of HSF1 and subsequent upregulation of Hsps.

PMID:
23000195
DOI:
10.1016/j.brainres.2012.09.022
[Indexed for MEDLINE]

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